You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
-/* Specification. */
#include "snprintf.h"
-/* Get va_list, va_start, va_end. */
#include <stdarg.h>
-/* Get free. */
#include <stdlib.h>
-/* Get memcpy, size_t. */
#include <string.h>
-/* Get vasnprintf. */
-#include "vasnprintf.h"
-
-/* Get MIN. */
#include "minmax.h"
+#include "vasnprintf.h"
/* Print formatted output to string STR. Similar to sprintf, but
additional length SIZE limit how much is written into STR. Returns
va_list args;
va_start (args, format);
- output = vasnprintf (NULL, &len, format, args);
+ len = size;
+ output = vasnprintf (str, &len, format, args);
va_end (args);
if (!output)
return -1;
- if (str && size > 0)
- {
- memcpy (str, output, MIN (len + 1, size));
+ if (str != NULL)
+ if (len > size - 1) /* equivalent to: (size > 0 && len >= size) */
str[size - 1] = '\0';
- }
- free (output);
+ if (output != str)
+ free (output);
return len;
}